Earth came into existence some 4.5 billions year ago and based on the fossil evidence from ancient rocks of Greenland, the life on earth dates to 3.7 billion years ago. The organisms that existed for the first two billions years, after the origin of life, were all anaerobic organisms. These organisms managed to survive and… Read More »
Photosynthesis is a process, where organisms use inorganic molecules such as carbon di oxide and convert it into carbohydrates (food) using sunlight. In this manner organisms capable of performing photosynthesis can generate energy that helps their growth. Different organisms perform Photosynthesis : Green sulfur bacteria, Acidobacteria, Cyanobacteria, Algae , Plants etc. Depending on the products… Read More »
Evolution (cumulative changes in a population or species through time), is crucial for survival and flourishing of all species or populations. According to endosymbiosis theory, all the eukaryotic life which we see today had evolved from the Archaea bacteria. Evolution has also played an important part in process of photosynthesis- from bacteria to plants. Photosynthesis… Read More »